中文摘要：

以大理-瑞丽山区铁路的通过能力适应性计算为研究重点,分别计算了大瑞铁路各区段的平行运行图和非平行运行图通过能力。提出了三列旅客列车在追踪系数分别为0、0.5、0.67、1时,大瑞铁路的通过能力加强方法。研究表明：组织列车追踪运行,可以大幅度缩减同方向列车间隔时间,从而可以显著提高区间通过能力。随着旅客列车追踪系数的增大,旅客列车的扣除系数呈减小趋势,铁路区间通过能力呈增大趋势。

英文摘要：

The capacity adaptability calculation of Dali-Ruili mountain railway is the focused issue discussed.The capacity of each segment with parallel train diagram and non-parallel train diagram is calculated respectively.The capacity strengthen method is proposed when there is 3 tracked passenger trains run with a tracking coefficient of 0,0.5,0.67 and 1.The studies have shown that： it will greatly reduce the time interval of the same direction trains and improve the capacity obviously when the trains adopt the mode of tracked running.The removal coefficient of the passengers decreases and the capacity increases when the tracking coefficient of the passengers increases.